netdev - Re: A problem about ICMP packet-too-big message handler

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Message-ID: <20150128051929.GA3369592@devbig242.prn2.facebook.com>
Date:	Tue, 27 Jan 2015 21:19:29 -0800
From:	Martin Lau <kafai@...com>
To:	Yang Yingliang <yangyingliang@...wei.com>
CC:	netdev <netdev@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: A problem about ICMP packet-too-big message handler

On Tue, Jan 27, 2015 at 08:58:53PM +0800, Yang Yingliang wrote:
> Hi,
> 
> My kernel is 3.10 LTS.
> 
> I got a problem here about handling ICMP packet-too-big message.
> 
> Before sending a packet-too-big packet :
The expires should be set by the host _receiving_ the icmpv6 too-big.

Can you spell out some details of the outgoing icmpv6 too-big packet?
like, the src/dst ip of the icmpv6 and the original ip packet that triggered the
too-big.
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